Grape is an REST-like API framework for Ruby. It's designed to run on Rack or complement existing web application frameworks such as Rails and Sinatra by providing a simple DSL to easily develop RESTful APIs. Developed by UberGrape GmbH
License: Commercial
Grape offers a user-friendly and collaborative environment with various integrations, while Riot.im emphasizes decentralization and security, making it suitable for privacy-focused users. The choice between them largely depends on the need for collaboration features versus privacy and security.